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annotate examples/@polynomial/polynomial.m @ 14093:050bc580cb60 stable

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doc: Various docstring improvements before 3.6.0 release. * NEWS, aspell-octave.en.pws, intro.txi, oop.txi, testfun.txi, tips.txi, FIRfilter.m, FIRfilter_aggregation.m, polynomial.m, polynomial_superiorto.m, usejava.m, pcg.m, pcr.m, nchoosek.m, validatestring.m, assert.m, weekday.m, cellfun.cc, error.cc, strfns.cc: Various docstring improvements before 3.6.0 release.
author Rik <octave@nomad.inbox5.com>
date Wed, 21 Dec 2011 19:46:57 -0800
parents 567e3e4ab74d
children
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1 ## -*- texinfo -*-
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2 ## @deftypefn {Function File} {} polynomial ()
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3 ## @deftypefnx {Function File} {} polynomial (@var{a})
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4 ## Create a polynomial object representing the polynomial
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5 ##
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6 ## @example
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7 ## a0 + a1 * x + a2 * x^2 + @dots{} + an * x^n
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8 ## @end example
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9 ##
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10 ## @noindent
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11 ## from a vector of coefficients [a0 a1 a2 @dots{} an].
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12 ## @end deftypefn
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13
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14 function p = polynomial (a)
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15 if (nargin == 0)
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16 p.poly = [0];
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17 p = class (p, "polynomial");
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18 elseif (nargin == 1)
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19 if (strcmp (class (a), "polynomial"))
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20 p = a;
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21 elseif (isvector (a) && isreal (a))
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22 p.poly = a(:).';
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23 p = class (p, "polynomial");
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24 else
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25 error ("polynomial: expecting real vector");
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26 endif
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27 else
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28 print_usage ();
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29 endif
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30 endfunction